Marine toilet



Sept. 24, 1957 R. B. KING MARINE TOILET Filed May 4, 1956 3 Sheets-Sheet 1 F|G.| f x Ef@ v `J A U B L l 44 3 4 Q56 I -d 60 I3 5455;/ 5 l J i zzvvENToR ROBERT B. KING 6 ATTORNEY R. B. KING MARINE TOILET Sept. 24, 1957 3 Sheets-Sheet 2 Filed May 4, 1956 FIG. 6

FIG.

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Sept. 24, 1957 R. B. KING 2,807,025

MARINE TOILET Filed May 4, 1956 3 Sheets-Sheet 5 FIG. IO 55 i |8 '6 I4 l5 8 |e lll N *L I 4 I I8 4 8 le C l5 e FIG. Il

INVENTOR ROBERT B. KING '4 BY Mm SML ATTORNEY E TGILET Robert B. King, Miami, Fla.

Application May 4, 1956, Serial No. 582,793

Claims. (Cl. 4-77) This invention relates to an improvement in marine toilets and, more particularly, to installations in which piston impeller means are utilized in the evacuation of waste.

An object of the invention is to provide a marine toilet apparatus which will be eiiicient in operation and simple and compact in assembly.

Another object is to provide a piston impelled toilet apparatus in which the waste evacuation stroke of the piston will be the positive pressure stroke thereof.

A further object is to provide a marine toilet which may be readily and economically manufactured.

Yet a further object is to provide marine toilet facilities capable of ready and convenient maintenance.

Still another object of the invention is to provide a marine toilet which will be sanitary in use.

These and other advantages of the invention will be discernible from the detailed description thereof hereinafter set forth.

According to the invention, the marine toilet comprises the usual bowl hopper, a casing having a substantially horizontal cylindrical bore, the casing including a downwardly -directed waste intake conduit communicating with the bowl for the reception of waste therefrom and discharging into the bore, a cylindrical liner received in the bore for slideable movement therealong and normally positioned therein to clear the waste intake conduit, a piston reciprocable in the liner, coupling means interposed between the piston and the liner whereby to advance the liner relative to the piston to close the waste intake conduit during passage of the piston along the liner for the evacuation of waste discharged from the intake conduit, water iiushing means operable to flush the bowl, casing, and mechanisms associated therewith, and means to actuate the piston.

. The invention is embodied in a marine toilet exemplied in the accompanying drawings in which the views are as follows, like reference characters designating identical parts throughout the several views:

Fig. 1, a side elevation of the fixture; and

Fig. 2, a front elevation thereof, being a rear elevation of the casing structure;

Fig. 3, a section on line 3--3, Fig. 9;

Fig. 4, a side elevation of the rotary coupling;

Fig. 5, an end elevation of the view in Fig. 8;

Fig. 6, a plan of the link member;

Fig. 7, a left side elevation of the View in Fig. 4;

Fig. 8, a longitudinal `sectional elevation through the casing;

Fig. 9, a fractional view of that in Fig. 8;

Fig. l0, a plan of the casing;

Fig. 1l, a elevation of the inner or forward face of the water column;

Fig. 12, a rear, and

Fig. 13, a side elevation of the handle assembly with the piston;

Fig. 14, aV part longitudinal sectional elevation of a modified form of casing structure; and

Fig. l5, a section on line 15--15 of Fig. 14.

ited States arent ice Referring to Figs. 1 and 2, the marine toilet has the usual bowl B terminating at the bottom thereof in a throat or drain outlet T and a fastening flange F formed integrally therewith. The bowl is carried by a casing C, having a substantially horizontal barrel 1 defining therethrough a cylindrical bore 2 (Figs. 8 and 9). Connected to the upper periphery of the barrel, is a waste intake conduit 3 formed integrally therewith.

The intake conduit 3 terminates at the top thereof in a companion flange 4 adapted to receive thereon the bowl fiange F secured thereto in a manner known in the art by threadable fastenings and intervening gasket (not shown).

The casing may have the usual floor brackets 5 for anchoring the fixture to deck structure, with fastening members (not shown).

Rearwardly thereof, the casing terminates in an end frame assembly comprising a rectangular water column 6 having closed top and bottom ends, a frontal wall 7 including a raised circular plate adapted to fit into the barrel 1 to form an end closure therefor, and a pair of laterally extending ear flanges 8 formed integrally with the frontal wall 7. Set into the plate 7 axially thereof, is a cylindrical block 9 which projects rearwardly through the column 6 to form an exterior rectangular block 10, thereby dividing the column into upper and lower chambers 11 and 12, for a purpose to be presently set forth.

Forwardly thereof, the casing terminates in an upcurved tail pipe 13 of restricted diameter which communicates with the barrel 1 through a fianged reducing fitting 14 formed integrally with the tail pipe. The fitting 14 is clamped to the barrel by a pair of bolts 15, each passing at one end thereof through ear flanges 8 (Fig. 10), and at the opposite end thereof through complementary ear flanges 16 formed integrally with an annular ring 17 encircling the tail pipe and secured by nuts 18 threadable on bolts 15.

Slideably received in the bore 2, is a cylindrical liner 19, reciprocable therein between a retracted position clearing the intake conduit thereabove and an extended position (Figs. 8 and 9) shutting this conduit off from communication with the bore.

The liner 19 has arranged therein a piston having a head 20 and rod 21 extending therebehind. The piston head 20, constructed of leather or like laminations faced on each side with metal plate of light gauge, is secured to the rod by a nut 22 threadable thereon. The rod is slideably supported, in the usual manner, in stuiiing gland structure incorporated in the rectangular block 10 and symbolized, generally, at 23, Fig. 5, such glands being well known to those skilled in the art.

Secured to the rear face of the piston head 20, and underlying the rod 21, is a double-walled bracket 24 in which is trunnioned the forward end of a link'or coupling member 25. This link, at its opposite end, terminates in a cross pin 26 which is releasably engaged by a hook member 27 of a double-walled rotary coupling member 28 (Figs. 4 and 7). The walls of this rotary member `straddle a longitudinally disposed and rectangular shaft 29 to which they are pivoted by a pivot pin 30. The shaft 29, fixed in any suitable manner to the plate 7 and having a working clearance thereunder relative to the liner 19, is thus fixed in stationary relation to the casing, thereby permitting the liner to move independently of the shaft 29 and the pivot point at 30 formed therein. The free end of the rotary coupling member, the walls of which are cross-connected by a pin 31, has oscillatory movement above the pin 30 through an arcuate path longitudinally of the liner and behind the piston head 20.

Adjacent the rearmost end thereof, the liner 19 has fastened against the top inner periphery and centrally thereof, a cam block 32 in which a vertical slot 33 is cut laterally therethrough. Loosely received in the slot 33, is the pin 31 in the free end of the rotary coupling member 28.

to Figs. -8 and 9, it wil be seen that upon a forwardmovement of the piston and simultaneous arcade-'travel of the rotary member 28, coupled through intervening linkage `thereto, the pin 31 functions as a cmragainst the block 32 tov thereby propel the liner forwardly Vof the bore 2.

- By virtue of the tangential relation of the cam block 32 to the arc of rotation of coupling member 28, the liner 19 moves outfrom its position in Fig. 8 faster than the piston. By. this nstructon, the liner advances to shut off the wam: intake conduit 3 before the piston can transverse thereunder. Thus, waste matter discharged im the intake conduit and deposited in the bore thereunid is.- ejected by the piston to the tail pipe 13 for discharge out of the system without diversion to the waste Clduit.- The conventional swingcheck valve 34- (Fig. l), isinterposed in thertail pipe to prevent any reversal of hw therethrough.

Referring to Fig. 8, theV casing receives flushing water hama supply pipe 35 connected to a water intake chamber 36- arrangedv under the barrel and abutting `the water oolwnnQcommunicating with the lower chamber 12 therein througha port closeable by a valve 37. This valve ma siem 38passingV through a gland plug 39 threaded into die back wall of the column. This stern terminates in acallar 40 mounted thereon (Fig. 5

Chamberl 12 discharges through a port 41 closeable by afwng check-12 to deliver water to the bore. Through anaperture 43, the bore discharges to chamber 11 which communicates with' an overhead duct 44 through a port Shaving a swing check 46. The check 46 is held normall; open by a shaft 47 passing through a gland plug 48 eaded into the back wall of column 6 and terminating at the .rear end thereofin a collar 49 mounted thereon (Fg. The duct 44 discharges through a port 44 formed in the flange 4 (Fig. 10).

, Trunnioned on the sides of the rectangular block 10, is a bifurcated` double-walled' rocker arm 50, pivoted thereto at 51. At the top thereof, the arm 50 defines a Bair of claws 52 which grasp a pair of cross pins 53 extending outwardly from the` collar 49; At the bottom thereof, the rocker arm is slotted to ride a pair of cross pins llextending'outwardly from the collar 40 (Fig. 5).

A helical spring 55 is interposed between the back face oteolurml 6 and the lowerportion of rocker arm 50 to normaly incline the rocker arm in a position effecting tlle` closure of valve` 37` againstv the admission of water to the column, andl to` keep port 45 open against the developmentof an air lock in the water passages of the easing. 'Ihe'roeker armhas a foot pedal 56 (Figs. l and 2), fastened in any suitable manner thereto, and operable to rock the arm' 50- against the bias of spring 55 for admission of ushing water to the casing.

'111e piston is actuated by an upright handle 57 (Figs. 1, 2, l2 and 13') which is fulcrumed in a suitable bracket 58, Medi upon any convenient portion of the casing as, for example, the water duct 44. The handle terminates at be bottom end thereof in a bifurcated portion 59, trunnienedfupon-a pair of pins 60, extending outwardly from areetangular block 61 which may be sweatedior otherwise sented upon tlieend portion of the piston rod 21, wherereciprocal movement to the rod 21 upon loseillating the handle 57, as will be understood.

Inpraetice, when the pistonmoving on a forward stroke reaches approximately a position shown in Fig. 9, the link 'is disengaged from Ahook 27 and the piston continues itssoke;to'expel waste matter through the tail pipe 13; retraction, the piston moves in advance of the liner-,rthelink moving to ther-ight (as viewed inthe figure), the rotary couplingmember 28 to effect its arcuate travel in a clockwise direction and thereby retratt the liner to its position as shown in Fig." 8; The 75 link may be adapted to ride upon the shaft 29 during its retractive travel to permit the cross pin 26 to re-enage the hook 27, the shaft terminating at its forward end in an arcuate cam 29. The pedal 56 is depressed to admit flushing water through the passages hereinabove described, the water discharging through port 44' in flange 4.

Registering with the port 44', is a complementary port (not shown) which is formed in the bowl flange F for the reception of flushing water from the casing, the bowl having the usual water conducting passages conventional in the art for directing the flushing stream in a spiral ilow therein.

A modification in barrel structure may be effected as depicted in Figs. 14 and 15 wherein an arcuate strip 19 has slideable movement in a central complementary guideway slotted or broached out of the upper inner periphery of the barrel 1', longitudinally thereof. The strip 19 carrying the cam block 32, is reciprocable from a retracted position clearing the waste' intake conduit 3 thereabove to an extended position shutting off this conduit from communication with the bore, the coupling means linking the cam block with the piston as hereinabove described whereby to move the strip 19 upon corresponding movement of the piston. The inner circumferential periphery of the bore in which the piston has movement defines a true cylinder, as will be understood, when the strip 19' occupies the guideway provided therefor.

The invention thus provides a unique waste evacuating means in a marine toilet, a characteristic of which is that the waste is impelled into the discharging tail pipe by the piston moving onl a pressure stroke, thereby permitting relatively heavier waste matter to be handled than in installations in which the waste moves on a suction stroke of the pistony in relation thereto.

Of course, the invention is susceptible of various minor modifications and changes Without departing from the scope thereof as hereinafter claimed.

Having thus described the invention and the mode of its practice, what I claim as new and desire to secure by Letters Patent is:

1. In a marine toilet, the `combination with a bowl, of a casing having a substantially horizontal cylindrical bore 'and a downwardly directed intake conduit receiving waste from said bowl and discharging into said bore, a reciprocable liner in said bore movable to seal said intake conduitl therefrom, a piston reciprocable in said liner, a rotary coupling element having a pivot fixed in relation to said `casing and `defining an oscillatory cam swingable through an arc longitudinally of said liner and beh-ind said piston, `a cam follower connected to said liner and en- `gageable by said cam to reciprocate said liner in like direction with the rotational direction of said rotary coupling element, a complementary coupling connected to said piston and engageable with said rotary coupling element for the oscillation thereof to move said liner in advance of the piston whereby to seal said intake conduit upon. the movement of the piston on a stroke projecting waste received in said bore therefrom, and means actuating said piston.

2. In a marine toilet including a bowl, a waste expulsion apparatus comprising, in lcombi-nation, a casing having a cylindrical and susbtantially horizontal bore, a downwardly inclined waste intake conduit interposed between said bowl and .said bore, a cylindrical limer reciprocable in said bore and advancible therein to seal said intake conduit therefrom, a piston reciprocable in said liner, coupling means releasably connecting said lifner to saidl piston to advance the liner ahead of the piston upon a pressure stroke thereof, said coupling means, comprising a link connected Ito said piston, a rotary coupling member having a pivot point fixed in stationary relation to said bore and a cam member formed thereon, a cam follower carried by said liner and operatively engageable by said cam member, `a hook member formed on saidv rotary member andv releasably engageable by said link member whereby to move said liner simultaneously with said piston and in advanced linear relation thereto.

3. In a marine toilet including a bowl, a waste expulsion apparatus comprising, in combination, a casing having a cylindrical and substantially horizontal bore, a downwardly inclined waste intake conduit interposed between said bowl and said bore, a cylindrical liner reciprocable in said bore and advancible therein to seal said intake conduit therefrom, a piston reciprocable in said liner, coupling means releasably connecting said liner to said piston to advance the liner ahead of the piston upon a pressure stroke thereof, said coupling means consisting of a rotary coupling member defining a hook at one end thereof and a cam member at the opposite end thereof and having pivot point intermediate said hook and said cam member, said pivot point being stationary relative to said bore, a cam follower fixed to said liner and in operative engagement with said cam member, la link connected at one -end to said piston and at the opposi-te end to said hook whereby to pivot said rotary coupling member upon the movement of said piston to thereby impart arcuate movement to said cam member and linear movement to said cam follower to advance said liner relative to said piston, 'and flow directing means in said casi-ng to direct a water ilushing stream to said bowl.

4. In a marine toilet including a bowl terminating -at the bottom thereof in a Waste outlet, the combination of a casing including a substantially horizontal piston chamber, said casing having a top waste intake communicable with the bowl outlet and the region of said piston chamber adjacent to said waste intake serving Ias a reciprooable closure therefor between a position clearing said intake and a positiion sealing said intake, a piston reciprocable in said piston chamber and linkage means mechanically associated with said intake closure region and motivated by said piston upon a pressure stroke thereof to advance said closure region ahead of said piston whereby to seal said intake during the passage of the piston relative to the intake, means to actuate the piston and means to conduct a flushing water stream from Isaid casing to said bowl, said linkage means comprising a link connected to said piston, a rotary coupling member having a pivot point fixed in stationary relation to the casing and a carn member vformed thereon, a cam follower carried by said intake closure region and operatively engageable by said cam member, -a hook member 4formed on said rotary member and releasably engageable by said link member whereby to move said closure region substantially simultaneously with said piston and in advanced linear relation thereto.

5. ln a marine toilet including a bowl terminating at the bottom thereof in a waste outlet, the combination of a casing having a top waste intake communicable with the bowl outlet and the region of said piston chamber adjacent to said waste intake serving as a reciprooable closure therefor between a position clearing said intake and a position sealing said intake, -a piston reciprooable in the piston chamber, a rotary coupling arranged in the interior of said casing and totally enclosed thereby, said coupling being pivoted at one end thereof from a pivot point in stationary relation to said casing and swivably connected at the opposite end thereof with said intake closure region, means linkin-g said piston with said coupling whereby to advance said closure region ahead of said piston and seal the was-te intake during the passage of the piston relative thereto, means to actuate the piston and means to conduct 'a flushing water stream from said casing to the bowl.

References Cited in the le of this patent UNITED STATES PATENTS 1,795,236 Schupp Mar. 3, 1931 2,388,805 stahl Nov. 13, 1945 2,580,134 shook Dec. 25, 1951 

